Oké slow down. Your English is not very good, so we cannoth follow you immediately, let's make this clear first:
- You can log on
- Your buddies cannot log on
- You cannot dual log and said that You should check your network connection.
Well first check if your .ini's are alright, look in this help section. There have been more people with problems with the .ini files. Look at their threads and you should fin out how it should be done.
Good luck!
PS. If you cannot find it in the help section, use the search button and search the help section, that way you always find what you need. (almost always, because almost everything has been posted here)